I only had 45 min to hunt tonight so I ran across the street to a small rental house that I have pounded with every machine I have owned in the last year, including the e-trac when I got it in Feb. Decided to try TTF for the first time and I am a believer. I only got 6 coins but one was a 1902 IH penny along with a wheatie,clad dime and quarter and 2 lincolns. The dime and quarter could have easily been silver that I walked over 100 times. And most of the came from a small piece of yard next to the house that I really cleaned out good. There is lots of iron but I just listened for the high tone and look for the good numbers. I wish I could have got some silver, but I now know I have walked over silver at some other sites that were hard to hunt due to no threshold and lots of iron.